Heel attaching machine



2 sheets-sheet l 1 J. F. HARDY HEEL ATTACHING MACHINE Filed June 25,1952 zie/gm' Aug. 28, 1934.

Aug. 28, 1934. J. F. HARDY HEEL ATTACHING MACHINE Filed June 25, 1932 2Sheets-Sheet 2 Patented Aug. 28, 1934 UNIT 1,971,344 HEEL ATTACHINGMACHINE John F. Hardy, Beverly, Mass., assigner to United YShoeMachinery Corporation, Paterson, N. J., a

corporation of New Jersey Application June Z5, 1932, Serial No. 619,265

11 Claims. (Cl. 12-123) This invention relatesto machines for use inabutment to engage the attaching surface of the the manufacture oi shoesand is illustrated herein heel when the support is moved toadjustedposias embodied in a machine particularly adapted tion, therebydetermining the elevation of the top for use in attaching heels toshoes. of `the cone of the last relatively to a clamping` s In thepractice of a method disclosed in United means. The various features ofthe invention will 60 States Letters Patent No. 1,615,258, granted Janbebest understood from a description of a preilary 25, 1927, onapplication of Maurice V. Bresferred embodiment thereof illustrated inthe acnahan, a lasted shoe anda heel are clamped in as- Companyingdrawings, in which Y seinbled relation while a screw is inserted throughFig. 1 is a view in. sidev elevation illustrating one 1o a hole in thelast, through the shoe bottom, and embodiment of the invention; 1 55into the heel to clamp the heel to the shoe during Fig'. 2 is a view inside elevation partly in section the setting of an adhesive which hasbeen applied of the last, shoe and heel clamping means;

. between the heeland the shoe. This screw may Fig. 3 is a frontelevation' of the mechanism have a nut threaded upon its shank to beturned shown in Fig. 2; i

is down into engagement with the top ofthe last Fig. 4 is a sectionalview of the mechanism for 70 after the screw is driven into the heeltohold inserting the screw fastener taken along the line the heel clampedto the shoe and last While the' IV-IV of Fig.5;

` adhesive is setting. Fig. 5` is a sectional view taken along the lineIn order that the fastener inserting tool may be V-V of Fig. 4;

used conveniently it is desirable that the fastener Fig. 6 is asectional View taken alongthe line '154 receiving hole in the lastextend in a substantially VI-VI of Fig. 4; vertical direction and thatthe last be positioned Fig. 7 is a `bottom view of the chuck forinsertwith the fastener receiving hole in alinement with 111g the SCI'eWfastener.

the fastener inserting tool. It is also desirable Referring to thedrawings, the illustrated mathat the tops of the lasts be located alwaysat Chine comprises a table 10 and e standard` 12 80 substantially thesaine elevation relatively to a mounted on a base 14. The table 10 isprovided clamping means to facilitate the application of With meansincluding a tread plate O1 WOIk Sllpuniform pressure to lasts ofdifferent shapes and Dort 16 and a Clamping bal' 18 OI SUDIJOI'Dg aheels ofdilferent heights. lasted shoe 17 and holding a heel 19 in placeAn object of the invention, accordingly, is to thereon during theoperation of inserting a fas- 85 provide an improved work supportarranged to tener in the heel 19. The standard 12 carries a maintain alast upon which the shoe is mounted fastener inserting or driving tool20 together in an upright position with the fastener receiving with anelectric motor 22 for driving said tool. hole in the last extending 4ina substantially The tread plate 16 is Shaped to engage the treedvertical direction and with the heel in assembled face Of the fOlepalt0f 011 S01@ 0f the S1106 17 90 relation with the shoe. This object hasbeen atand is extended to engage the Bread face 0f the tained, in theillustrated machine, by the provi-` 1168119- The plate 0I' SUDDOI 15 SmOlllted fOI sion of an angularly adjustable plate for engagingangularadjusment t0 DOSOIl the Shoe With the and supporting the treadface of the shoe and by hole in the last through which a screw fastener4@ means including a wedge-shaped member eon- 26 passes to clamp theheel and the Shoe in assem- A95 structed and arranged to engage andmaintain bled relation in substantially vertical position. the angularlyadjustable plate in adjusted posi- The plate 16 iS pVOted t0 9-`bTaCk123 by a Din tion. As illustrated, the support comprises a 30, thebracket 28 being adjustably mounted for bracket, a plate pivotallymounted on the brack- Vertical mOVemGIlt 011 the table 10 by a D051? 32-et, a wedge mounted in the bracket and adapted The post 32 is formed asa downward extension 100 to engage the plate to lnove the plate intoadof the bracket 28. Mounted below the pin 30'in justed position, andmeans connected to the wedge the bracket 28 is a shaft 38 which carriesan arm for engaging the rear face of the heel, said means 40, the arm 40being secured to the shaft by a set being constructed and arranged to bemoved to screw 42. A lever 44 is secured to one end of the adjustedposition when the pivotally mounted shaft 38 for moving the arm 40 for apurpose 105 plate is moved into adjusted position. In order which willhereinafter be described. The bottom that the plate may be moved quicklyinto adof the plate 16 is provided with a downwardly exiusted position,the illustrated machine has also tending lug 46 which bears against ahorizontally been provided with a member for engaging the movablewedge-shaped member 48. The, member treed Surface of en unattaehed heeland. with an 48 is provided with a recess 5o into which fits the 110ball-shaped end of the arm 40. It is apparent that movement of the lever44 will transmit movement to the wedge-shaped member 48 thereby raisingor lowering the tread plate 16.

The forward end of the plate or support 16, that is, the end nearest theoperator, is provided with a slot 52 in which a heel positioning deviceor gage 54 is mounted for adjusting v'the position ,of the heel 19relatively to the clamping bar 18. The heel positioning vdevice 54 isconnected to'a block 56 which is arranged for sliding movement in theslot 52. It is to be noted that the block 56 is arranged to carry thepositioning member 54 into adjusted position, the movement of thepositioning device 54 forwardly or rearwardly depending upon the heightof the heel. The positioning device 54 is provided with a heel rest 58which is particularly adapted for engaging the rear portion of the heelof a high heeled shoe and this back rest 58 may be moved forwardly orrearwardly to adjust the back rest for any type or style of heel. Theforward end of the back rest 58 is provided With a slot through whichpasses a screw 66 which maintains the back rest 58 in adjusted positionon a pivoted plate 62 which is pivoted to the block 56 by a pin 64. Theother end of the plate 62 is provided with a heel or gage 66 which isparticularly adapted to position low heels andthis member 66 isadjustably secured to the plate 62 by a U screw 68 by means of which themember 66 may be maintained' in its adjusted position.

The arm and the sliding block 56 are secured together by a link 70, oneend of which is pivotally secured to the arm 40 and the other end to theblock 54. By this construction the positioning device 54 isautomatically brought into proper position for any height heel when theangular position of the tread plate 16 is changed. .That is, when a lowheel is to be operated on the plate 16 will be moved upwardly until thetread face of the heel 19 is engaged by the plate 16 and the holethrough which the fastener 26 passes is substantially Vertical. 1t is tobe noted that in low heels the back surface thereof is substantiallyvertical whereas in high heels the rear surface of the heel makes adecided angle to the vertical and for this reason it is necessary tomove the positioning device 54 rearwardly or forwardly, depending uponthe type of heel. Since all high heels do not make H the same angle withthe vertical it is necessary to adjust the position of the back rest 58accurately to locate the back rest 58 whereby the heel can be wedgedthereagainst by the clamping bar 18 without substantially changing theposition .of

' the shoe on the tread plate 16.

The clamping bar 18 is located above the surface of the table 1G and ismounted for movement vtoward and away from the tread plate 16 to clampagainst the plate 16 the lasted shoe 1'7'and the heel 19 in assembledrelation therewith. The' links carry the clamping bar 18 at their upperextremities. Intermediate between their ends the links 72,74 arepivotally secured to arms 78 of a U-shaped bracketpivotally mounted in ahollow bearing member 80surrounding the post 32. At

""5 their lower ends `the links 72. 74 are secured to arms 82 of a yoke84 which is pivotally mounted on a spindle 86 carried by a bracket 88secured to the lower extremity of the bearing member 89 by a set screw89. It will be observed that the arms 82 are substantially longer thanthe arms 78. By this arrangement whenever the clamping bar 18 is movedupwardly the links 72, 74 are moved upwardly by the arms 82 and are alsorocked about the connections 76 with the arms 78 to carry the clampingbar 18 toward the toe end oi the shoe 17 to an inoperative position inwhich the clamping bar 18 will not interfere with the actions of theoperator in placing a shoe within the clamp or Vremoving one therefrom.The upward and forward or inoperative position of the bar 18 isadjustably determined by a threaded stop 90 which engages an abutment 92formed on the bracket 88.

The arms 72, 74 are rocked to operate the abovedescribed clampingapparatus by means of yielding adjustable connections from a treadle 94(Fig. 1') A coiled spring 96 extends between the treadle rod 94 and theyoke 84. The upper end of the spring is secured to a rod 98 between thearms 82 o the yoke 84 and its lower end is secured to a member 10()having a slot through which extends a pin 102. secured to the treadle94. The lower end of the slotted member 100 is provided with anadjusting screw 104 by means of which the tension of the spring 96 maybe adjusted. Secured to the rod 98 is a treadle rod 106 which isprovided with an open slot (not shown) at its lower end for thereception of the pin 102 on the treadle 94. Mounted on the treadle 94 isa locking treadle 188 which carries a pawl arranged to engage astationary rack 112 when the clamping devices are in operating position.The spring 114 secured to the treadle 108 and to a cross bar mounted onthe machine frame or base 14, serves to hold the pawl 110 in engagementwith the teeth on the rack 112 and, after. clamping pressure has beenreleased, to return the clamping devices to inoperative position.

When the operator depresses the treadle the clamping bar 18 through thearms 82 of the yoke 84 and the arms '72, 'Z4 is rocked toward the coneof the last by a spring 96 and when the treadle 94 has been depressed adistance sufficient to obtain the necessary pressure, the treadle 108 isswung toward the stationary rack 112, causing the pawl 110 to engage theteeth on the rack. should be understood, however, that under someconditions the operator prefers not to lock the clamping devices inoperative positions but prefers to stand on the treadle until theoperation to be performed on the shoe has been completed. the operationhas been perormed on the shoe 17 the operator steps on the treadle 94 todepress it slightly and then with the toe of his shoe depresses thetreadle 108 to disengage the pawl 116 After gi from the rack 112. Thetreadle 94 and the iocking treadle 168 are then moved upwardly under thevinfluence of the spring 94 until the pin 143-2 strikes the end slot inthe rod 106. At thif in the pawl 116 is moved upwardly beyond the t onthe rack and the treadle 94 and the 3 4. p

devices connected thereto are swung into inoperative position by thespring 114.

In order accurately to adjust the tread plate 16 for various heights ofheels a heel supporting bracket 115 is secured to the tread plate 16 byfw.,

f which the operator may move connection.

plate 16 but it maybe substantially flush with or even below the surfaceof the tread plate 16. Secured to the bracket 28 by screws 124'is amember 126 which co-operates with the member 122 to act as a stop orabutment for the heel when adjusting the tread plate 16 toits properposition. The upper end of the member 126 is provided with a downwardlyextending portion 128which engages the attaching face of a heel. When itis deN sired to adjust the 'treadplate 16 to its proper position a heelof the type and height to `be attached to the shoe 17 is placed on themember 123 and the tread plate is angularly adjusted, as hereinbeforedescribed, until the attaching face of the heel engages or contacts withthe member 128. The member or stop 128 and the heel supporting member122.are so arranged that, regardless of the height of the heel, the coneof the last which is engaged by the clamping bar 18 is always insubstantially the same elevation, thus insuring that the pressureapplied to the last by the clamping bar 18 will be substantially thesame in all sizes and types of shoes.

Referring now to Fig. 2 it will be noted that the end of the fastener 26is fluted or slabbed off to permit the fastener to be inserted in a heelwithout the necessity of first forming a hole for the reception of thefastening. In other words, the fastener 26 acts as a drill to form ahole in the heel 19. The other end of the fastener is provided with anelongated head 130 by means of whichthe fastener can be turned into thework. Immediately below the head 130 the shank of the fastener isthreaded to receive the clamping nut 132. The nut 132 is provided with acollar on which is mounted a conical washer 134. The purpose andoperation of the parts of the screw fastener will be more clearlyunderstood when the mechanism for inserting the fastener has beendescribed.

The mechanism 20 for inserting the screw fastener 26 comprises a screwdriver 136 and a wrench 138. The screw driver 136 and the wrench 138 areprovided with a telescopic driving connection which includes a universaljoint 140 connected to the armature shaft of the motor 22 and to asleeve 142 which is provided with diametrically opposed slots 144extending longitudinally of the sleeve. YA shaft 146 mounted for slidingmovement in the sleeve 142 is arranged with a key 148 which fits intothe openings 144. The lower end of the shaft 146 is provided with auniversal joint `150 and acts through connections to rotate the fastenerinserting mechanism 20.

The fastener inserting mechanism 20 is supported in a frame k152 which,as isshown best in Figs. 1 and 4, is in the form of a shell having adownwardlyl extending portion 154 shaped to form a convenient hollowhandle by means of the tool to operating position. The portion 154 ishollow and in this handle the driving connections for the wrench 138and. the screw driver 136 are concentrically rotated. The shell 152 issupported in inoperative position by a supporting member 156 which ispivotally secured to the shell 152. The portion of the member 156nearest the operatoriforms a convenient shield to prevent accidentalcontact with the constantly rotating telescopic driving The upper end ofthe member 156 is provided with a pair of upstanding arms 158 which arepivotally connected to a lever 160 fulcrumed to the standard 12 at 162and projecting into an opening formed in the standard 1'2.

'p' Connected to the other end of the lever 160 is a spring 164 havingits other end secured to a hookshaped member 166 adjustably secured tothe lower end of the standard 12. By this construction the fastenerinserting mechanism is normally maintained in a position which does notinterfere with the' actions of the operator in placing'work on thesupport 16 or in removing the work therefrom but permits (the fastenerinserting mechanism readily tobe moved to operative position.

Thevwrench 138 is threaded on lthe lower end of a hollow shaft 168 whichis arranged to rotate within the hollow handle 154. The enlarged upperend of the hollow shaft 168 is provided with diametrically opposedratchet teeth 170, 172 (Fig. 6) which are adapted to be engaged by pawls174, 176, respectively. The pawls 174, 176 are pivoted at 178, 180respectively to a rotating cylindrical frame 182 which is positivelyconnected to the motor 22 through the universal joint 150. The pawls174, 176 are prevented from moving axially by inwardly extendingprojections 184, 186 of the frame 182, these projections being locatedbelow the pawls, and by projections 188, 190 located above the pawls. Itwill be noted that the pivots 178, 180 extend through these projections.The pawls 174, 176 are normally heldin engagement with the `ratchetteeth 170 and 172 by springs 192 and 194, respectively. The springs 192and 194 are held under tension by arms 196, 198 which are pivoted to theprojections above-referred to by screws 202 and 204 respectively. Thearms `196, 198 are provided with cam surfaces 206, 208 which bearagainst pins 210, 212 secured to a ring cap 214. The tension of thesprings 192 and 194 may be adjustedby rotating the frame 182 relativelyto the ring cap 214, thereby moving the pins 210, 212 along the cam"surfaces formed on the arms 196, 198. The parts are maintained inadjusted position by the screws 202 and 204 which extend through slotsformed in the ring cap 214 and are threaded to nuts 216 on the lowerside of the ring cap 214. It is ap parent that by tightening the screws202, 204 the frame 182 and the ring cap 214 are securely clampedtogether.

The screw driver 136 is mounted for rotation within the hollow shaft 168and is secured to the lower end of a shaft 218, the upper end of theshaft 218 being provided with a key 220 which fits into diametricallyopposed slots in a hollow shaft 222. The shaft 218 is normally heldagainst the lower end of the shaft 222 by a spring 224 which is `mountedwithin the hollow shaft 222. The upper end of the hollow shaft 222 isprovided with ratchet teeth 226, 228 which engage pawls 230 and 232,respectively. The pawls 230 and 232 are pivoted to the cylindrical frame132 by the pivots 178, 180 hereinbefore referred to. The pawls 230, 232are normally held against the ratchet teeth 226, 228 by pairs of spiralsprings 235, 237. The outer ends of these springs are received incup-like depressions formed in arms 236, 238 which are pivoted to thecylindrical frame 182 by the screws 202 and 204. TheV arms 236 and 238are provided with cam surfaces which i engage pins 240 and 242,respectively, said pins being secured to the upper ring cap 244. By thisconstruction the tension of the springs 234, 235 may be adjusted insubstantially the same manner as the tension of the springs 192 and 194,that is, the upper ring cap 244 is provided with slotsV through whichscrews-246 and 248 are passed, the ends of the screws being threadedinto projections 250, 252. When it is desired to increase the tension ofthe springs 235, 237 the screws 246, 248

.L and 176.

are loosened and theupper ring cap turned relatively to the frame182'and when the pins 240 and 242 have been moved against the camsurfaces formed on the arms 236, 238 to move the arms toward the-centerof the cylindrical frame to obtain the desired tension on the springs,the screws 246 and 243 may be tightened to maintain the parts in theiradjusted'position. The top of the shaft 222 is surrounded hy a spacingwasher e` formed of friction material and tting into a hole formed inthe ring cap 244. Y

It is to be noted that the screw driver 136 can be rotated to drive ascrew a predetermined distance by the adjustment of the springs 23e and235, that is, the springs may be adjusted to permit the ratchet teeth226, 228 to slip past the ends of the pawls 23() and 232 so that therotation of the screw driver 136 will cease when the screw has beendriven the desired depth. The wrench 138 is arranged to stop rotatingwhen the washer 134L is brought up against the top of the last and sincethe pitch of the threads on the shank of the screw fastener 26 is lessthan the pitch of the threads of the slabbed-oi end of the screwfastener 26 it is not necessary that the tension of the springs 192, 19abe as great as the pressure of the springs 23st,A 235 and, accordingly,the pawls 174i-, 176 are arranged to slip when suflicient clampingpressure is set up by the nut 132. If the tension on the springs 192 and194 Were too great the threads in the nut 132 and the shank of the screwfastener 26 would strip and for this reason it is desirable that onlylight pressure be brought upon the pawls 174 fjheel 19 on the treadplate 116 and against the yielding back rest 58 and a shoe on the treadplate 16 with the heel -seat of the shoe engaging the top surface of theheel. The clamping pressure is then applied through the bar 18temporarily to maintain the parts in assembled relation. With the partsof the machine in this position the operator grasps the hollow handle154 and moves the tool 20 downwardly into engagement with the screwfastener 26. rEhe screw fastener is then driven hito the heel until theresistance to thescrew is suiicient to cause the pawls 23), 232 to slip,thereby stopping the rotation of the screw driver. IThe wrench 138 thencontinues its rotation to turn the nut 132 `against the top oi the lastand when suiiicient clamping pressure has been set up the pawls 174 176slip, thereby permitting the wrench to come to rest. The operator thenremoves the tool 2G, which returns to the position shown in Fig. l,releases the clamping pressure on the shoe and removes the shoe from themachine. The parts or the machine are now in position to operate onanother shoe.

Having thus described my invention, what I claim new and desire tosecure by YLetters Patent of the United States is:

1. A machine for operating upon shoes having, in combination, a toolforinserting a fastener through a hole in a last, and means forsupporting the shoe with the hole in the last in alinement with saidtool, said means including an angularly adjustable tread plate, apositioning member on said plate constructed and arranged to engage theback of a heel to be placed in assembled relation to the shoe, and meansconnected to the positioning member constructed and arranged to move thepositioning member to adjusted position upon movement of the tread plateto adjusted position.

2. A machine for operating upon shoes having, in combination, meansadapted to engage the cone of a last having a shoe thereon to clamp theshoe and a heel in assembled relation, a pivoted tread plateV forengaging and supporting the tread face of the shoe, a positioning memberon said plate constructed and arranged to engage the back of the heel,and means connected to the positioning member and arranged to move thepositioning member to adjusted position upon movement of the tread plateto adjusted position.

3. A machine for operating upon shoes having, in combination, a clampadapted to engage the cone of the last having a shoe thereon to clampthe shoe and a heel in assembled relation, a pivoted tread face forengaging and supporting the tread face of the shoe, a gage adjustablymounted on said plate and constructed and arranged to engage the back ofthe heel, and means connected to said gage and arranged to move the gageto adjusted position upon movement of the tread plate to adjustedposition.

4;. A machine for operating upon shoes having, in combination, a clampadapted to engage the cone of a last having a shoe thereon to clamp theshoe and a heel in assembled relation, a pivoted tread plateior engagingand supporting the tread face or the shoe, means arranged to engage saidplate and to move said plate to adjusted position, a gage adjustablymounted on said plate and constructed and arranged to engage the back ofthe heel, and ar link connected to said adjusting means and to saidgage, said link being arranged to move the gage to adjusted positionupon movement of the tread plate to adjusted position.

5. A shoe supporting device having, in combination, a plate for engagingand supporting the tread face of a shoe, means on said plate forengaging the rear wall of the heel of a shoe, means for movingconnection between the first-mentioned means and the second-mentionedmeans arranged to move the heel 'engaging means to adjusted positionupon movement of the plate to adjusted position.

6. A shoe supporting device having, in combination, a pivoted plate forengaging and supporting the tread face oi a shoe, a gage on said platefor engaging the rear wall of the heel of the shoe, means for moving andmaintaining the plate in adjusted position, and connections between thegage and the adjusting means arranged to move the gage to adjustedposition upon movement of the plate to adjusted position.

7. A shoe supporting device having, in combination, an angularlyadjustable tread plate for engaging and supporting a shoe, a gage forengaging the rear wall of the heel oi the shoe, a Wedge-shaped memberconstructed and arranged to engage said plate and to move said plate toadjusted. position, and means connecting the gage and thel wedge-shapedmember for moving the gage to adjusted position upon movement or thetread plate to adjusted position.

the plate to adjusted position, and a 8. A device for clamping a heel toa lasted shoe having, in combination, a bracket, a plate pivotallymounted upon said bracket, a Wedge mounted for sliding movement in saidbracket and adapted to engage said plate to maintain the plate inadjusted position, a clamping bar arranged to engage the cone of thelast upon which the shoe is mounted to clamp the shoe against the plate,and a gage arranged to engage the back of a heel to position the heelrelatively to the clamping bar.

9. A device for securing a lasted shoe and a shoe heel in assembledrelation having, in cornbination, a clamping bar for engaging the top ofthe last on which the shoe is mounted, a support adjustable to determinethe elevation of the top of the last relatively to said clamping bar,

"and means constructed and arranged todeter mine the adjusted positionof said support, said means including a member secured to the supportfor engaging the tread face of a heel, and an abutment for engaging theattaching face of said heel.

bination, a clamping bar for engaging the top of the last on Which theshoe is mounted, an adjustable support for the shoe and heel, a membersecured tosaid support for engaging the tread face of a heel, and astationary abutment constructed and arranged to engage the attachingsurface of said heel, said member and said abutment oo-operating todetermine the adjusted position of said support relatively to saidclamping means. i

JOHN F. HARDY.

